The Common Unix Printing System (CUPS, for the acronymists in the room), which comes installed on most *nix distros by default is also available on the Mac. OS X user Jeff Wheeler describes using CUPS right in the browser to administer shared printers on the network:

[CUPS is] a print server with a brilliant web-interface allowing flexibility that the System Preferences' Print & Fax pane does not support. It also has a lot of networking functionality. If you're on a Mac (or Linux if shared printing is enabled), look here: http://127.0.0.1:631/.

Do enable printer sharing in System Preferences first before hitting up that link. Using the CUPS web interface you can add network printers and see jobs queued and printing on shared printers - definitely one for the "old skool Unix goodies on the Mac" file. — Gina Trapani